Rabbi Yom Tov is mentioned several times in Tosafot.
[4] He is also mentioned three times in Sefer haYashar[5] There is a Rabbi Yom Tov ben Judah mentioned in Tosafot and by Isaac ben Moses of Vienna in Ohr Zarua.
Jacob Nahum Epstein[6] and others identify him as Rabbi Yom Tov of Falaise who is mentioned by Mordechai ben Hillel in Shabbat.
According to Ephraim Urbach, Rabbi Yom Tov moved to Paris.
[7] Rabbeinu Tam described him as, "My teacher and my dear friend, my teacher, Rabbi Yom Tov, I am not worthy that you sent to me, but this is your student's opinion..."[3]